Heater



Patented Sept The object of sion of a boiler .121, ieee.

s is. 1

LEX W. HUBBARD, OF

TARE/AN T, ALABAMA.

y HEATER.

Application viirlefl February 4, 1925. Serial No. 6,833.

this invention is the proviior 'use in heating buildings,

simplicity in construction efficiency in practical use. the

invention consists in the improvement as 'hereinafter described and definitely claimed.

ln the drawing the figure illustrates a ysubstantially ver tical central sectional view through the improvement.

The shell or jacket of the boiler l has formed therein but spaced bust-ion chamber passes through the 'ilic top o chamber. ber is disposed a tne top oi: the

chamber is provided with therefrom a com- 2, the smoke tlue 3 ot which rear oi the combustionV i the combustion chan considerable distance below shell, and the combustion the usual grate fl below which is the ash pit 5. 'The combustion chamber boiler approximately in a grate l.

is joined to the side oi the line with the reterably integrally-.formed centrally on the top oi the combustion is an inwardly directed substanti conical chamber chamber 2 there ally rrustowhose reduced end or mouth T projects beyond the top ot the said combustion chamber.

@n the top of the combustion chamber,Y and surrounding the nozzle end 7 or1 theV chamber 6 there saine forming a is an annular flange 8, the pan on the top of the said combustion chamber. l n Either integrally formed with or secured to the center o the top of the boiler there is the reduced neck portion 9 ci a substantially pear-shaped chamber '10. The bottom o the chamber l() is rounded upwardly as at 11. The inwardly rounded or flared portion ll communicates with the chamber lOand provides the same with a nozzle which is'arranged directly below the neck 9 o Screwed. in a t the said chamber.

suitable boss'on the top of the boiler that communicates with vthe neck oi the chamber 10 there isv water outlet pipe 12.

The return pipe for the numeral 19, and

the steam or hotV the boiler is indicated the water feed' pipe for the boiler is indicated by the numeral 23.

VJ ith my improvement all of the water4 'i be heated rom the lire inthe boiler will in the combustion chamber '2. However, the water directed by the pan Sinto the chamber 6 of the injector will be subjected to the greatest amount of heat so that steam will Ibe generated therein. As hot water always rises a determined amount of boiling water will be received in the pear-shaped. chamber lO. The'steamV :trom'the injector 6 is directed through the nozzle 11 at the bottom of the chamber l0 and this steam acting on the boiling water in the said chamber l0 will force the water through the top of the boilerinto the pipe 12. The said water, while still in heated condition will be returned through the pipe 19 to the boiler. Thus it willbe noted that a continuous circulation of hot water is produced.

Having described the invention, claiinz- Y j Y A boiler having in its shell orv drum a combustion chamber whose lower wall joins the fire box at a point above 'theash pit and whose upper wall is arranged a` considerable portion is received in the combustion chamber andwhose reduced mouth portionis eirtended beyond the top of the combustion chamber, anannular flange on thevtop of the combustion chamber surrounding the mouth of' the water chamber, a`pearshaped chamber formed on and depending from the top 0I" the boilerand received in the ilan'ge, said pear-shaped chamber having its bottom rounded upwardly and inwardly to provide a water inlet mouth for the said pear-shaped chamber, pipes screwed in the top of the boiler, one of which Acommunicates with the pear-shaped'V chamber, and an inletv waterk pipe screwedin one side of the boiler.

Vln testimony whereof I aliiX my signa# ture. l

LEX w. i-iuniniini.

l water chamber whose lower Vand widened f 

